· In an electric storage heater, bricks with a high specific heat capacity are heated overnight by passing an electric current through a heating coil in the bricks. The bricks are surrounded by insulation.
· The bricks are heated by night when electricity is cheaper.
· The system is closed in but has a cover which can be opened to release the heat when needed.
· During the day the bricks slowly give out their heat, thus heating the room.
· Because the bricks have a high specific heat capacity they can absorb a lot of heat without increasing very much in temperature, therefore not losing much back to the environment.
eg. Radiator
No comments:
Post a Comment